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3 years ago

-2(3x - 4) + 7 divided by 3

Mathematics

1 answer:

kolbaska11 [484]3 years ago

6 0

Answer:

-6x+31/3

Step-by-step explanation:

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BRAINLIST IF CORRECT! 10 POINTS! What is the constant of proportionality if x is 3 and y is 9?

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Answer:

constant of proportionality, k is 3

Step-by-step explanation:

constant, k= y/x

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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Ivahew [28]

Answer:

$\sf Since \;\sqrt{\boxed{64}}=\boxed{8}\;and\;\sqrt{\boxed{81}}=\boxed{9}\; \textsf{it is known that $\sqrt{75}$ is between}\\\\\sf \boxed{8}\;and\;\boxed{9}\;.$

Step-by-step explanation:

Perfect squares: 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, ...

To find $\sf \sqrt{75}$ , identify the perfect squares immediately before and after 75:

64 and 81

$\begin{aligned}\sf As\;\; 64 < 75 < 81\; & \implies \sf \sqrt{64} < \sqrt{75} < \sqrt{81}\\&\implies \sf \;\;\;\;\;8 < \sqrt{75} < 9 \end{aligned}$

$\sf Since \;\sqrt{\boxed{64}}=\boxed{8}\;and\;\sqrt{\boxed{81}}=\boxed{9}\; \textsf{it is known that $\sqrt{75}$ is between}\\\\\sf \boxed{8}\;and\;\boxed{9}\;.$

See the attachment for the correct placement of $\sf \sqrt{75}$ on the number line.

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1 year ago

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